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Nuno Sá
b890e61637
When "nand-no-ecc-engine" is set in DT, nanddev_get_ecc_engine() takes
the NAND_ECC_ENGINE_TYPE_NONE path and returns success while leaving
nand->ecc.engine NULL. The SPI-NAND code nevertheless dereferences it
unconditionally to test for a pipelined engine, so probing such a
device oopses immediately.
Rather than open-coding the test three times, add a
nand_ecc_is_pipelined() helper to the NAND core that folds the NULL
check into the integration comparison, and use it everywhere. Future
callers then cannot reintroduce the problem.
Fixes: f9d7c7265b ("mtd: spinand: Create direct mapping descriptors for ECC operations")
Cc: [email protected]
Signed-off-by: Nuno Sá <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>